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<h1 id="release-notes-for-stm32f3xx-cmsis"><strong>Release Notes for STM32F3xx CMSIS</strong></h1>
<p>Copyright © 2016 STMicroelectronics<br />
</p>
<a href="https://www.st.com" class="logo"><img src="./_htmresc/st_logo.png" alt="ST logo" /></a>
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<h1 id="license"><strong>License</strong></h1>
This software component is licensed by ST under BSD 3-Clause license, the “License”; You may not use this component except in compliance with the License. You may obtain a copy of the License at:
<center>
<a href="https://opensource.org/licenses/BSD-3-Clause">https://opensource.org/licenses/BSD-3-Clause</a>
</center>
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<div class="col-sm-12 col-lg-8">
<h1 id="update-history"><strong>Update History</strong></h1>
<div class="collapse">
<input type="checkbox" id="collapse-section2_3_6" aria-hidden="true"> <label for="collapse-section2_3_6" aria-hidden="true"><strong>V2.3.6 / 23-July-2021</strong></label>
<div>
<h2 id="main-changes">Main Changes</h2>
<ul>
<li>General update
<ul>
<li>Added new atomic register access macros in stm32f3xx.h file.</li>
<li>Add LSI maximum startup time datasheet value: LSI_STARTUP_TIME.</li>
</ul></li>
<li>STM32F334x8 updates
<ul>
<li>HRTIM: Add missing defines to reset all Slave Timer X</li>
</ul></li>
<li>STM32F373xC/ STM32F378xx updates
<ul>
<li>Start-up files update to call COMP_IRQHandler instead of COMP1_2_IRQHandler</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section2_3_5" aria-hidden="true"> <label for="collapse-section2_3_5" aria-hidden="true"><strong>V2.3.5 / 10-November-2020</strong></label>
<div>
<h2 id="main-changes-1">Main Changes</h2>
<ul>
<li>General update
<ul>
<li>system_stm32f3xx.c
<ul>
<li>Protect Vector table modification following SRAM or FLASH preprocessor directive by a generic preprocessor directive : USER_VECT_TAB_ADDRESS<br />
</li>
</ul></li>
<li>Add License.md and Readme.md files required for GitHub publication</li>
<li>Improve GCC startup files robustness.</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section2_3_4" aria-hidden="true"> <label for="collapse-section2_3_4" aria-hidden="true"><strong>V2.3.4 / 12-September-2019</strong></label>
<div>
<h2 id="main-changes-2">Main Changes</h2>
<ul>
<li>General update
<ul>
<li>Use ‘UL’ unsigned long postfix for _Msk definitions and momory/peripheral base addresses for MISRA C 2012 Compliance</li>
<li>SystemInit(): update to don’t reset RCC registers to its reset values.</li>
</ul></li>
<li>STM32F334x8 update
<ul>
<li>HRTIM updates:
<ul>
<li>Fix too many defines for HRTIM Delayed Protection Flag Clear.</li>
<li>Fix wrong definition of HRTIM1_TIMx constants</li>
<li>Align HRTIM bits definition with reference manual</li>
</ul></li>
</ul></li>
<li>Update OB_TypeDef structure to be aligned with reference manuals.</li>
<li>Rename macro definition IS_<strong>USB</strong>_ALL_INSTANCE to IS_<strong>PCD</strong>_ALL_INSTANCE.</li>
<li>Align ADC_DIFSEL_DIFSEL_Pos definition with reference manual.</li>
</ul>
</div>
</div>
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<input type="checkbox" id="collapse-section2.3.3" aria-hidden="true"> <label for="collapse-section2.3.3" aria-hidden="true"><strong>V2.3.3 / 11-June-2018</strong></label>
<div>
<h2 id="main-changes-3">Main Changes</h2>
<ul>
<li>General update
<ul>
<li>Align ErrorStatus typedef to common error handling ( stm32f3xx.h )</li>
</ul></li>
<li>TIM updates
<ul>
<li>Add IS_TIM_SYNCHRO_INSTANCE macro for STM32F37xxx devices</li>
<li>Add IS_TIM_HALL_SENSOR_INTERFACE_INSTANCE macro definition</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section2.3.2" aria-hidden="true"> <label for="collapse-section2.3.2" aria-hidden="true"><strong>V2.3.2 / 23-June-2017</strong></label>
<div>
<h2 id="main-changes-4">Main Changes</h2>
<ul>
<li>Remove support of Atollic TrueSTUDIO STM32 (TrueSTUDIO) toolchain.</li>
<li>FLASH updates
<ul>
<li>Clean-up OB_WRP2_nWRP2 &amp;&amp; OB_WRP2_nWRP3 (Option Byte) definitions according to family diversity.</li>
</ul></li>
<li>RTC updates
<ul>
<li>Renamed RTC_CR_BCK to RTC_CR_BKP in RTC_CR register in order to be aligned with STM32F3xx Reference Manual.</li>
</ul></li>
<li>SYSCFG updates
<ul>
<li>Removed SYSCFG_CFGR3_DAC1_TRG3, SYSCFG_CFGR3_DAC1_TRG5, SYSCFG_CFGR3_TRIGGER definitions for STM32F328xx devices.</li>
</ul></li>
<li>SPI updates
<ul>
<li>Removed SPI_SR_CHSIDE, SPI_SR_UDR definitions for STM32F303x8, STM32F328xx, STM32F334x8 devices.</li>
</ul></li>
<li>EXTI updates
<ul>
<li>Add EXTI_EMR2_EM definition.</li>
</ul></li>
<li>COMP updates
<ul>
<li>Clean-up COMPx_CSR definitions according to family diversity.</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section2.3.1" aria-hidden="true"> <label for="collapse-section2.3.1" aria-hidden="true"><strong>V2.3.1 / 16-December-2016</strong></label>
<div>
<h2 id="main-changes-5">Main Changes</h2>
<ul>
<li>COMP updates
<ul>
<li>Corrected COMP inputs definition for STM32F3xxxx devices</li>
</ul></li>
<li>ADC updates
<ul>
<li>Corrected SDADC_CONF1R_COMMON1_1 bit definition for STM32F373xC and STM32F378xx devices</li>
</ul></li>
<li>TIM updates
<ul>
<li>Added macro IS_TIM_ADVANCED_INSTANCE() to identify advanced timer instances</li>
<li>Remove TIM_CR2_OIS2N, TIM_CR2_OIS3, TIM_CR2_OIS3N and TIM_CR2_OIS4 definitions for STM32F373xC and STM32F378xx devices (alignement with STM32F3xx Reference Manual)</li>
</ul></li>
<li>RCC updates
<ul>
<li>Renamed RCC_CFGR register fields defines for STM32F378xx and STM32F373xC devices to be aligned with STM32F3xx Reference Manual : SDADCPRE ==&gt; SDPRE</li>
</ul></li>
<li>PWR updates
<ul>
<li>Renamed PWR_CR register fields defines for STM32F378xx and STM32F373xC devices to be aligned with STM32F3xx Reference Manual : SDADCxEN ==&gt; ENSDx</li>
</ul></li>
<li>USB updates
<ul>
<li>compliancy with MISRA C 2004 rules:
<ul>
<li>MISRA C 2004 rule 10.6 (‘U’ suffix applied to all constants of ‘unsigned’ type).</li>
<li>MISRA C 2004 rule 12.7 (bitwise operations not performed on signed integer types).</li>
</ul></li>
</ul></li>
<li>EXTI updates
<ul>
<li>Depends on devices, removed EXTI_IMR_MRxx, EXTI_EMR_MRxx, EXTI_RTSR_TRxx, EXTI_FTSR_TRxx, EXTI_SWIER_SWIERxx, EXTI_PR_PRxx, EXTI_IMR2_MRxx, EXTI__EMR2_MRxx, EXTI_RTSR2_TRxx, EXTI_FTSR2_TRxx, EXTI_SWIER2_SWIERxx, EXTI_PR2_PRxx definitions to be aligned with STM32F3xx</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section2.3.0" aria-hidden="true"> <label for="collapse-section2.3.0" aria-hidden="true"><strong>V2.3.0 / 29-April-2016</strong></label>
<div>
<h2 id="main-changes-6">Main Changes</h2>
<ul>
<li>General updates
<ul>
<li>Updated CMSIS Device compliancy with MISRA C 2004 rules:
<ul>
<li>MISRA C 2004 rule 5.1 (bitwise operators ~ and &lt;&lt;).</li>
<li>MISRA C 2004 rule 10.6 (‘U’ suffix applied to all constants of ‘unsigned’ type).</li>
</ul></li>
<li>Added FLASHSIZE_BASE and UID_BASE defines.</li>
<li>Added HardFault_IRQn definition (Cortex-M4 Hard Fault Interrupt)</li>
<li>Updated “Liberty” License with the new license “Ultimate Liberty”.</li>
<li>Updated system_stm32f3xx.h/.c files:
<ul>
<li>Added AHBPrescTable definition as external.</li>
<li>Added APBPrescTable definition as external.</li>
</ul></li>
</ul></li>
<li>ADC updates
<ul>
<li>Updated/added ADCxy_COMMON definitions for alignment between all STM32 series.</li>
<li>Aligned bit definitions and descriptions for ADC registers between all STM32 series.</li>
</ul></li>
<li>COMP updates
<ul>
<li>Updated/added COMPxy_COMMON definitions for alignment between all STM32 series.</li>
<li>Created literal COMP_CSR_COMPxSW1 (equivalent of COMP1_CSR_COMP1SW1 and COMP2_CSR_COMP2SW1).</li>
<li>Removed COMPxxx_CSR_COMPyyyNONINSEL bit definitions for devices not supporting COMP3 or COMP5 instances</li>
<li>and added COMP2_CSR_COMP2NONINSEL bit definition for STM32F303xE, STM32F398xx devices.</li>
<li>Added COMP6_CSR_COMP6NONINSEL bit definition for for STM32F303xE and STM32F398xx devices.</li>
</ul></li>
<li>DAC updates
<ul>
<li>Aligned DAC_CR_BOFFx bit definition in DAC_CR register to be declared on the 2 DAC channels.</li>
</ul></li>
<li>EXTI updates
<ul>
<li>Aligned EXTI bits definition with others STM32 series.</li>
</ul></li>
<li>FMC updates
<ul>
<li>Aligned FMC_BWTRx register bit definitions.</li>
</ul></li>
<li>I2C updates
<ul>
<li>Added IS_I2S_EXT_ALL_INSTANCE definition for I2S Full-Duplex feature.</li>
<li>Added IS_I2C_WAKEUP_FROMSTOP_INSTANCE definition for I2C instances supporting Wakeup from Stop mode.</li>
</ul></li>
<li>RCC updates
<ul>
<li>Used RCC_CFGR_MCOSEL as reference in all STM32 series.</li>
<li>Renamed RCC_CFGR_MCOSEL_PLL to RCC_CFGR_MCOSEL_PLL_DIV2 for alignment between all STM32 series.</li>
<li>Renamed RCC_CFGR3_TIMxSW_HCLK to RCC_CFGR3_TIMxSW_PCLK2 in RCC_CFGR3 register.</li>
<li>Renamed RCC_CFGR3_HRTIM1SW_HCLK to RCC_CFGR3_HRTIM1SW_PCLK2 in RCC_CFGR3 register.</li>
<li>Removed RCC_CFGR_PLLNODIV bit definition from STM32F358xx, STM32F303xC and STM32F302xC devices.</li>
<li>Removed RCC_CSR_VREGRSTF bit definition in RCC_CSR register for STM32F303xC and STM32F303xE devices.</li>
<li>Removed USART2 and USART3 clock switch in RCC_CFGR3 register not supported by STM32F303x8, STM32F334x8</li>
<li>and STM32F328xx devices and for STM32F301x8, STM32F302x8 and STM32F318xx devices.</li>
<li>Removed RCC_CSR_V18PWRRSTF bit definition in RCC_CSR register not supported by STM32F318xx, STM32F328xx, STM32F358xx, STM32F378xx and STM32F398xx devices.</li>
</ul></li>
<li>RTC updates
<ul>
<li>Added missing bits definition for RTC_TAFCR register.</li>
<li>Removed RTC_ISR_TAMP3F, RTC_TAFCR_TAMP3TRG, RTC_TAFCR_TAMP3E bit definitions in RTC_ISR and RTC_TAFCR registers for STM32F303x8, STM32F334x8, STM32F328xx, STM32F301x8, STM32F302x8 and STM32F318xx devices.</li>
</ul></li>
<li>TIM updates
<ul>
<li>Removed TIM_SMCR_OCCS bit definition not supported by STM32F373xC.h and STM32F378xC.</li>
</ul></li>
<li>WWDG updates
<ul>
<li>Aligned WWDG registers bits naming between all STM32 series.</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section2.2.0" aria-hidden="true"> <label for="collapse-section2.2.0" aria-hidden="true"><strong>V2.2.0 / 13-November-2015</strong></label>
<div>
<h2 id="main-changes-7">Main Changes</h2>
<ul>
<li>General updates
<ul>
<li>Aligned all peripheral registers structures to uint32_t.</li>
<li>Added preprocessor compilation switch STM32F3 definition (stm32f3xx.h).</li>
<li>Added missing STM32F302xD and STM32F303xD mcus in the description list (stm32f3xx.h).</li>
<li>Removed define for CCM(core coupled memory) data RAM base address in Bit-Band region.</li>
<li>Removed __IO or __I from constant table declaration (system_stm32f3xx.c).</li>
<li>Corrected _estack value in project template files.</li>
</ul></li>
<li>RCC updates
<ul>
<li>Renamed RCC_CFGR3_USART1SW_PCLK to RCC_CFGR3_USART1SW_PCLKx according to devices.</li>
<li>Added missing flag for RCC_CSR_VREGRSTF bit.</li>
<li>Moved RCC_CFGR_MCO flag in correct devices.</li>
<li>Fixed minor typod in the comments (RCC bit definition).</li>
</ul></li>
<li>RTC updates
<ul>
<li>Updated list of RTC backup registers according to devices.</li>
</ul></li>
<li>HRTIM updates
<ul>
<li>Corrected Bit definition for HRTIM_MCMP2R/HRTIM_MCMP3R/HRTIM_MCMP4R registers (STM32F334x8 device).</li>
</ul></li>
<li>GPIO updates
<ul>
<li>Removed duplicated definition of IS_GPIO_ALL_INSTANCE macro.</li>
<li>Used IS_GPIO_AF_INSTANCE and IS_GPIO_LOCK_INSTANCE macro definitions.</li>
<li>Cleaned GPIO bank. Updated GPIO MLOCK capability.</li>
<li>Added only one define BSRR for BSRRH/BSRRL GPIO port bit set/reset register.</li>
<li>Added macro to check AF capability of GPIO instance.</li>
</ul></li>
<li>I2C updates
<ul>
<li>Renamed I2C_CR1_DFN to I2C_CR1_DNF.</li>
<li>Added define for OwnAdress 2 mask bit field values (I2C_OAR2_OA2MASK).</li>
</ul></li>
<li>UART updates
<ul>
<li>Added IS_UART_DMA_INSTANCE macro to sort UART instances supporting DMA communication.</li>
</ul></li>
<li>FLASH updates
<ul>
<li>Renamed FLASH_OBR_WDG_SW to FLASH_OBR_IWDG_SW.</li>
<li>Added defines for DATA0 &amp; DATA1 available in OBR register.</li>
</ul></li>
<li>USB updates
<ul>
<li>Renamed two bitfields: USB_XXX_PMAOVRM to USB_XXX_PMAOVR and USB_CNTR_LP_MODE to USB_CNTR_LPMODE.</li>
</ul></li>
<li>TIM updates
<ul>
<li>Corrected Repetition Counter bits definition (TIM_RCR_REP).</li>
</ul></li>
<li>DAC updates
<ul>
<li>Corrected/added DAC channel output switch enable bits definition in DAC_CR register.</li>
</ul></li>
<li>FMC updates
<ul>
<li>Updated Bits definitions for FMC registers.</li>
</ul></li>
<li>EXTI updates
<ul>
<li>Updated Bit definitions for External Interrupt/Event Controller (EXTI).</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section2.1.0" aria-hidden="true"> <label for="collapse-section2.1.0" aria-hidden="true"><strong>V2.1.0 / 12-Sept-2014</strong></label>
<div>
<h2 id="main-changes-8">Main Changes</h2>
<ul>
<li>Add the support of the <strong>STM32F302xE</strong> and the <strong>STM32F398xx</strong> devices.</li>
<li>STM32F303xE update
<ul>
<li>Renamed SYSCFG_CFGR3 in SYSCFG_CFGR4</li>
</ul></li>
<li>STM32F302xC update
<ul>
<li>Removed DHR12R2, DHR12L2, DHR8R2 and DOR2 from DAC registers definition</li>
<li>Removed all DAC channel 2 related constant defintions</li>
<li>Removed TIM8 related constant definitions</li>
<li>Removed DAC_CHANNEL_2 from IS_DAC_CHANNEL_INSTANCE() macro</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section2.1.0.RC2" aria-hidden="true"> <label for="collapse-section2.1.0.RC2" aria-hidden="true"><strong>V2.1.0.RC2 / 25-Aug-2014</strong></label>
<div>
<h2 id="main-changes-9">Main Changes</h2>
<ul>
<li>Add CMSIS files for STM32F303xE products</li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section2.0.1" aria-hidden="true"> <label for="collapse-section2.0.1" aria-hidden="true"><strong>V2.0.1 / 18-June-2014</strong></label>
<div>
<h2 id="main-changes-10">Main Changes</h2>
<ul>
<li>General
<ul>
<li>Add new macro IS_COMP_DAC1SWITCH_INSTANCE to check COMP instance with switch of DAC1 channel1 output to non inverting input</li>
</ul></li>
<li>STM32F301x8 update
<ul>
<li>Add new define SYSCFG_CFGR2_LOCKUP_LOCK</li>
</ul></li>
<li>STM32F302x8 update
<ul>
<li>Add USB interrupt remapping
<ul>
<li>Add new defines USB_HP_IRQn, USB_LP_IRQn and USBWakeUp_RMP_IRQn for USB interrupt remapping</li>
<li>Add new define SYSCFG_CFGR1_USB_IT_RMP</li>
</ul></li>
<li>Add new define SYSCFG_CFGR2_LOCKUP_LOCK</li>
</ul></li>
<li>STM32F303xC update
<ul>
<li>Add new define SYSCFG_CFGR2_LOCKUP_LOCK</li>
<li>Remove SYSCFG CFGR3 register description</li>
</ul></li>
<li>STM32F373xC update
<ul>
<li>Add new define COMP1_2_3_IRQn alias definition on COMP_IRQn</li>
</ul></li>
<li>STM32F318xx update
<ul>
<li>Rename COMP4_5_6_IRQn to COMP4_6_IRQn</li>
</ul></li>
<li>STM32F328xx update
<ul>
<li>Remove HRTIM1 (cleanup stm32f328xx.h and startup files)</li>
</ul></li>
<li>STM32F358xx update
<ul>
<li>Remove USB
<ul>
<li>Rename USB_HP_CAN_TX_IRQn and USB_LP_CAN_RX0_IRQn to CAN_TX_IRQn and CAN_RX0_IRQn</li>
<li>Remove USBWakeUp_IRQn, USB_HP_IRQn, USB_LP_IRQn and USBWakeUp_RMP_IRQn</li>
<li>Remove define SYSCFG_CFGR1_USB_IT_RMP</li>
</ul></li>
<li>Remove SYSCFG CFGR3 register description</li>
</ul></li>
<li>STM32F378xx update
<ul>
<li>Remove USBWakeUp_IRQn, USB_HP_IRQn and USB_LP_IRQn</li>
<li>Add new define COMP1_2_3_IRQn alias definition on COMP_IRQn</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section2.0.0" aria-hidden="true"> <label for="collapse-section2.0.0" aria-hidden="true"><strong>V2.0.0 / 28-May-2014</strong></label>
<div>
<h2 id="main-changes-11">Main Changes</h2>
<ul>
<li>Major update based on STM32Cube specification: new CMSIS device files release dedicated to <strong>STM32F301x6/x8, STM32F302x6/x8, STM32F302xB/xC, STM32F303x6/x8, STM32F373xB/xC, STM32F334x4/x6/x8, STM32F318xx, STM32F328xx, STM32F358xx and STM32F378xx devices .</strong></li>
<li><strong>This version has to be used for STM32CubeF3 based development although files can be used independently too.</strong></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1.1.1" aria-hidden="true"> <label for="collapse-section1.1.1" aria-hidden="true"><strong>V1.1.1 / 28-March-2014</strong></label>
<div>
<h2 id="main-changes-12">Main Changes</h2>
<ul>
<li>Add new startup files for the STM32F302x8 and STM32F334x8 devices for TrueSTUDIO toolchain.</li>
<li>Update startup files for EWARM toolchain to cope with compiler enhancement of the V7.10 version.</li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1.1.0" aria-hidden="true"> <label for="collapse-section1.1.0" aria-hidden="true"><strong>V1.1.0 / 27-February-2014</strong></label>
<div>
<h2 id="main-changes-13">Main Changes</h2>
<ul>
<li>Add the support of the <strong>STM32F302x8</strong> and the <strong>STM32F334x8</strong> devices.</li>
<li>Update devices names definition to be in line with the new new STM32F30x family devices names.
<ul>
<li><strong>STM32F30X</strong> replaced by <strong>STM32F303xC.</strong></li>
</ul></li>
<li>stm32f30x.h
<ul>
<li>Upddate to support the new STM32F30x family devices names.
<ul>
<li><strong>STM32F30X</strong> replaced by <strong>STM32F303xC</strong></li>
</ul></li>
<li>Update IRQn enum to support the STM32F302x8 and STM32F334x8 devices.</li>
<li>Update HSE_STARTUP_TIMEOUT value.</li>
<li>Update HSI_STARTUP_TIMEOUT value.</li>
<li>Add HRTIM peripheral registers and bits definitons.</li>
<li>Add CFGR3 registers in the SYSCFG_TypeDef structure.</li>
<li>Update peripheral base addresses to support the added peripherals: DAC2, I2C3, HRTIM.</li>
<li>Update ADC_SQR4 register bit definition.</li>
<li>Remove ADC34_CCR_TSEN and ADC34_CCR_VBATEN bits definitions.</li>
</ul></li>
<li>Add new startup files for the STM32F302x8 and STM32F334x8 devices for the supported compilers
<ul>
<li>Replace startup_stm32f30x.s by startup_stm32f303xc.s file.</li>
<li>startup_stm32f30x.s file is maintained for legacy purpose.</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1.0.0" aria-hidden="true"> <label for="collapse-section1.0.0" aria-hidden="true"><strong>V1.0.0 / 04-September-2012</strong></label>
<div>
<h2 id="main-changes-14">Main Changes</h2>
<ul>
<li>First official release for <strong>STM32F30x devices</strong> (Standard Library)</li>
</ul>
</div>
</div>
</div>
</div>
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